KR970031013A - Lithium Battery with Flow-Type Safety Plate - Google Patents

Lithium Battery with Flow-Type Safety Plate Download PDF

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Publication number
KR970031013A
KR970031013A KR1019950041784A KR19950041784A KR970031013A KR 970031013 A KR970031013 A KR 970031013A KR 1019950041784 A KR1019950041784 A KR 1019950041784A KR 19950041784 A KR19950041784 A KR 19950041784A KR 970031013 A KR970031013 A KR 970031013A
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KR
South Korea
Prior art keywords
safety plate
plate
lithium battery
internal gas
case
Prior art date
Application number
KR1019950041784A
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Korean (ko)
Inventor
변성광
Original Assignee
배순훈
대우전자 주식회사
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950041784A priority Critical patent/KR970031013A/en
Publication of KR970031013A publication Critical patent/KR970031013A/en

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  • Secondary Cells (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

전해액에 열과 충격이 가해져서 팽창하는 경우, 내부 가스의 팽창이 발생된 초기에 파열 디스크를 파열시켜 팽창된 내부가스를 쉽게 배출시킬 수 있으며, 불꽃이 치솟는 높이를 줄일 수 있는 안전판을 지닌 리튬전지를 제공하는데에 그 목적이 있다.In case of expansion due to heat and shock applied to the electrolyte, the ruptured disk can be ruptured at the initial stage of the expansion of the internal gas, and the expanded internal gas can be easily discharged. The purpose is to provide.

본 발명은 종래의 리튬건전지에 있어서, 케이스 내의 전해액이 팽창하여 발생된 내부가스를 긴 경로를 통과한 후 분출시킴으로써, 불꽃을 냉각시켜 치솟는 높이를 줄이며, 폭발력을 감소시키는 흡열용 유로가 형성된 안전판을 커버 내부의 링 프레이트와 파열디스크 사이에 구비하는 것을 특징으로 한다. 또한, 상기 안전판의 상부면과 하부면에 각각 메쉬(mesh)형 방열망을 설치함으로써, 상기 안전판으로 유입되고, 배출되는 내부가스의 냉각 효과를 증가시킬 수 있다.The present invention provides a safety plate having a heat absorbing flow path for cooling the flame and reducing the height of the explosion by ejecting the internal gas generated by the expansion of the electrolyte in the case after passing through a long path. It is characterized in that it is provided between the ring plate and the bursting disk inside the cover. In addition, by installing a mesh (heat dissipation) mesh on the upper and lower surfaces of the safety plate, it is possible to increase the cooling effect of the internal gas flowing into the safety plate, discharged.

열과 충격에 의해 케이스 내의 전해액이 팽창되어 불꽃이 분출될 경우, 분출되는 불꽃이 유로식 안전판과 방열망을 통과하면서 열을 빼앗기고 압력이 감소되어, 캡의 벤트홀 외부로 치솟는 불꽃의 높이를 감소시키며, 또한 폭발이 발생될 경우에도 감소된 열 에너지에 의하여 폭발력이 감소되므로써 리튬건전지의 안전성을 높이는 효과가 있다.When the electrolyte in the case expands due to heat and impact, and sparks are ejected, the sparks pass through the flow-type safety plate and the heat dissipation network, depriving heat, and the pressure is reduced, reducing the height of the flame that rises outside the vent hole of the cap. In addition, even when an explosion occurs, the explosion force is reduced by the reduced thermal energy, thereby increasing the safety of the lithium battery.

Description

유로식 구조의 안전판이 장착된 리튬건전지Lithium Battery with Flow-Type Safety Plate

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래 리튬건전지의 분해 사시도,1 is an exploded perspective view of a conventional lithium battery,

제2도는 종래 리튬건전지의 단면도,2 is a cross-sectional view of a conventional lithium battery,

제3도는 종래 리튬건전지의 상단부 단면도.3 is a cross-sectional view of the upper end of a conventional lithium battery.

Claims (5)

소정의 임계값 이상의 압력에 의해 파열되는 파열디스크(33), 완충 역할을 하고, 상기 파열디스크(33)의 상부면에 씌워지며, 중앙개구부를 갖는 링 플레이트(32), 상기 파열디스크(33)와 링 플레이트(32)를 내측에 고정시키며 중앙관통공(31)을 갖는 커버(30), 상기 커버(30)의 상부면에 배치되며 중앙관통공(21) 구조를 갖는 피티씨소자(20), 상기 피티씨소자(20)의 상부면에 배치되고, 양극의 접점 역할을 하며, 중앙 벤트홀(11)을 갖는 캡(10), 상단에 개구부(62)를 형성하고 상측벽부의 내측으로 돌출부(63)가 형성되며 전해액(70)이 충전되는 케이스(60), 격리판을 개재하여 양극판과 음극판이 나선상으로 감아져서 케이스(60) 내의 상기 돌출부(63) 하부에 수납되는 극판군(50), 상기 파열디스크(33), 링 플레이트(32), 커버(30), 피티씨소자(20) 및 캡(10)을 고정시켜 잡아주며 케이스(60)의 내측 돌출부 상부에 설치되어 케이스(60)의 내부를 밀봉시키는 가스켓(40)을 구비하는 리튬건전지에 있어서, 상기 케이스(60) 내의 전해액(70)이 팽창하여 발생된 내부가스를 긴 경로를 통과한 후 분출시킴으로써, 불꽃을 냉각시켜 치솟는 높이를 줄이며, 폭발력을 감소시키는 흡열용 유로가 형성된 안전판(100)을 구비하는 것을 특징으로 하는 유로식 안전판이 장착된 리튬건전지.Rupture disk 33 is ruptured by a pressure equal to or more than a predetermined threshold, and acts as a buffer, is covered on the upper surface of the rupture disk 33, ring plate 32 having a central opening, the rupture disk 33 And the ring plate 32 to the inside and the cover 30 having a central through hole 31, disposed on the upper surface of the cover 30, the PTC element 20 having a structure of the central through hole 21, The cap 10 is disposed on the upper surface of the PTC element 20, serves as a contact point of the anode, and has a cap 10 having a central vent hole 11, an opening 62 formed at an upper end thereof, and a protrusion 63 inside the upper wall part 63. Is formed and the positive electrode plate and the negative electrode plate are spirally wound through the case 60 and the separator plate in which the electrolyte 70 is filled, and the pole plate group 50 accommodated below the protruding portion 63 in the case 60. Fixing and holding the rupture disk 33, the ring plate 32, the cover 30, the PTC element 20 and the cap 10 In the lithium battery having a gasket 40 installed on the inner protrusion of the case 60 to seal the inside of the case 60, the internal gas generated by the expansion of the electrolyte solution 70 in the case 60 A lithium battery having a flow path safety plate, comprising: a safety plate (100) formed with a heat absorbing flow path for cooling the flame to reduce the height of the soaring by passing through a long path, and reducing the explosion force. 제1항에 있어서, 상기 유로식 안전판(100)이 커버(30) 내부의 링 플레이트(32)와 파열디스크(33) 사이에 설치되는 것을 특징으로 하는 유로식 안전판이 장착된 리튬건전지.According to claim 1, wherein the flow path safety plate 100 is a lithium battery with a flow path safety plate, characterized in that installed between the ring plate 32 and the rupture disk (33) inside the cover (30). 제1항 또는 제2항에 있어서, 상기 유로는 안전판(100) 하부면의 중앙부에 내부가스의 유입구(106B)가 형성되고, 안전판(100) 상부면의 중심에서 반경방향으로 일정거리 떨어진 지점에 내부가스의 배출구(108A)가 형성되며, 상기 유입구(106B)로 부터 배출구(108A)까지 안전판(100) 내부의 긴 경로를 통하여 연통되어 형성되는 것을 특징으로 하는 유로식 안전판이 장착된 리튬건전지.According to claim 1 or 2, wherein the flow path is formed in the inlet 106B of the internal gas in the center of the lower surface of the safety plate 100, at a point radially away from the center of the upper surface of the safety plate 100 An outlet gas (108A) of the internal gas is formed, the lithium battery with a flow-type safety plate, characterized in that the communication is formed through a long path inside the safety plate 100 from the inlet (106B) to the outlet (108A). 제3항에 있어서, 상기 안전판(100)으로 유입되고, 배출되는 내부가스의 냉각 효과를 증가시키기 위하여, 상기 안전판(100)의 상부면과 하부면에 각기 메쉬(mesh)형 방열망(200)(220)을 설치하는 것을 특징으로 하는 유로식 안전판이 장착된 리튬건전지.According to claim 3, In order to increase the cooling effect of the internal gas flows into the safety plate 100, discharged, the mesh type heat dissipation network 200 on the upper and lower surfaces of the safety plate 100, respectively Lithium battery equipped with a flow-type safety plate, characterized in that to install 220. 제4항에 있어서, 상기 방열망의 메쉬가 인치당 40~100 메쉬인 것을 특징으로 하는 유로식 안전판이 장착된 리튬건전지.The lithium battery of claim 4, wherein the mesh of the heat dissipation net is 40-100 mesh per inch. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950041784A 1995-11-17 1995-11-17 Lithium Battery with Flow-Type Safety Plate KR970031013A (en)

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Application Number Priority Date Filing Date Title
KR1019950041784A KR970031013A (en) 1995-11-17 1995-11-17 Lithium Battery with Flow-Type Safety Plate

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KR1019950041784A KR970031013A (en) 1995-11-17 1995-11-17 Lithium Battery with Flow-Type Safety Plate

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KR970031013A true KR970031013A (en) 1997-06-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9735408B2 (en) 2013-11-27 2017-08-15 Samsung Sdi Co., Ltd. Secondary battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9735408B2 (en) 2013-11-27 2017-08-15 Samsung Sdi Co., Ltd. Secondary battery

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